OnePlus 9 vs Redmi K80 Ultra
The OnePlus 9 (2021) runs on the Qualcomm Snapdragon 888, while the Redmi K80 Ultra (2025) runs on the MediaTek Dimensity 9400+; launch prices were $729 and $350. By overall MobileRank rating, the Redmi K80 Ultra leads — 73/100 vs 60/100 (a 13-point difference). Key differences: the Redmi K80 Ultra has the bigger battery (7410 mAh vs 4500); the main camera is 48 MP vs 50 MP; the Redmi K80 Ultra is faster in AnTuTu (2,874,956 vs 1,157,244); the OnePlus 9 is noticeably lighter (192g vs 219g).
Profile comparison
Category scores
OnePlus 9
Redmi K80 Ultra
What makes OnePlus 9 better?
- Lighter: 192g vs 219g
- Better camera (51/100 vs 37/100)
- Better portability (56/100 vs 40/100)
What makes Redmi K80 Ultra better?
- Higher AnTuTu: 2874956 vs 1157244
- Better Geekbench Single: 2729 vs 1500
- Better Geekbench Multi: 8430 vs 3537
- Bigger battery: 7410 vs 4500 mAh
- Faster charging: 100W vs 65W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 144Hz vs 120Hz
- Cheaper at launch: $350 vs $729
- Higher performance (89/100 vs 64/100)
- Longer battery life (86/100 vs 50/100)
- Better display (94/100 vs 80/100)
Comparison verdict
Comparing the OnePlus 9 vs the Redmi K80 Ultra, the Redmi K80 Ultra scores 13 points higher (73/100 vs 60/100). In the "performance" category, the Redmi K80 Ultra leads (89/100 vs 64/100). In the "camera" category, the OnePlus 9 leads (51/100 vs 37/100). In the "battery" category, the Redmi K80 Ultra leads (86/100 vs 50/100). Value score: OnePlus 9 — 34/100, Redmi K80 Ultra — 80/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Redmi K80 Ultra notably outperforms the OnePlus 9 (89/100 vs 64/100). In the "display" category, the Redmi K80 Ultra is a bit better (94/100 vs 80/100). In the "camera" category, the OnePlus 9 is a bit better (51/100 vs 37/100). In the "battery" category, the Redmi K80 Ultra significantly outperforms the OnePlus 9 (86/100 vs 50/100). In the "portability" category, the OnePlus 9 notably outperforms the Redmi K80 Ultra (56/100 vs 40/100).
Specs comparison
| Specification | OnePlus 9 | Redmi K80 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 888 | MediaTek Dimensity 9400+ | |
| AnTuTu | 1157244 | 2874956 | |
| Geekbench Single | 1500 | 2729 | |
| Geekbench Multi | 3537 | 8430 | |
| Display | 6.5" AMOLED | 6.8" OLED | |
| Resolution | 2400x1080 | 1280x2772 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 4500 mAh | 7410 mAh | |
| Charging | 65W | 100W | |
| Wireless charging | 15W | — | |
| Main camera | 48 MP | 50 MP | |
| Ultrawide | 50 MP | 8 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 11 | Android 15 | |
| Brightness (peak) | 1100 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | — | IP68 | |
| Dimensions | 160.0×74.2×8.7 mm | — | |
| Weight | 192 g | 219 g | |
| Launch price | $729 | $350 |
Camera comparison
OnePlus 9
- Main: 48MP f/1.8
- Ultrawide: 50MP
- Front: 16MP
Redmi K80 Ultra
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Front: 20MP
Display comparison
OnePlus 9
- 6.5" AMOLED
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Redmi K80 Ultra
- 6.8" OLED
- Resolution: 1280x2772
- Refresh rate: 144 Hz
Battery and charging
OnePlus 9
- 4500 mAh
- Wired: 65W
- Wireless: 15W
Redmi K80 Ultra
- 7410 mAh
- Wired: 100W
- Wireless charging: no data
Overall performance score
We compared OnePlus 9 and Redmi K80 Ultra, covering their specs and all relevant benchmarks.
Redmi K80 Ultra leads OnePlus 9 by 59.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $379. Redmi K80 Ultra was $379 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K80 Ultra notably outperforms the OnePlus 9 (89/100 vs 64/100).
display
In the "display" category, the Redmi K80 Ultra is a bit better (94/100 vs 80/100).
camera
In the "camera" category, the OnePlus 9 is a bit better (51/100 vs 37/100).
battery
In the "battery" category, the Redmi K80 Ultra significantly outperforms the OnePlus 9 (86/100 vs 50/100).
portability
In the "portability" category, the OnePlus 9 notably outperforms the Redmi K80 Ultra (56/100 vs 40/100).
Frequently asked questions
Which is better: the OnePlus 9 or the Redmi K80 Ultra?
The Redmi K80 Ultra is noticeably better than the OnePlus 9 — the overall rating gap is 13 points.
What is the rating of the OnePlus 9 and the Redmi K80 Ultra?
The OnePlus 9 has a MobileRank rating of 60/100, the Redmi K80 Ultra — 73/100.
Which has the better camera: the OnePlus 9 or the Redmi K80 Ultra?
The OnePlus 9 leads on camera score (51/100 vs 37/100).
Which is more powerful: the OnePlus 9 or the Redmi K80 Ultra?
The Redmi K80 Ultra leads on performance (89/100 vs 64/100).
Should you choose the OnePlus 9 over the Redmi K80 Ultra?
The OnePlus 9 is a better fit for active users. The Redmi K80 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.